Home / 5,112.90-7,669.44-1,824.30

Finding the Fourth Proportional to 5,112.90, 7,669.44 and 1,824.30

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Solution

The fourth proportional to 5,112.90, 7,669.44 and 1,824.30 is: 2,736.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.90 : 7,669.44 = 1,824.30 : x
  2. Step 2: Convert to fraction form
    5,112.90/7,669.44 = 1,824.30/x
  3. Step 3: Cross multiply
    5,112.90x = 7,669.44 × 1,824.30
  4. Step 4: Simplify right side
    5,112.90x = 13,991,359.39
  5. Step 5: Solve for x
    x = 13,991,359.39/5,112.90
  6. Step 6: Final answer
    x = 2,736.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.